Finding the Fourth Proportional to 76,277.80, 114,416.70 and 68,501.80
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Solution
The fourth proportional to 76,277.80, 114,416.70 and 68,501.80 is: 102,752.70
Step by Step Solution
- Step 1: Write the proportion equation
76,277.80 : 114,416.70 = 68,501.80 : x - Step 2: Convert to fraction form
76,277.80/114,416.70 = 68,501.80/x - Step 3: Cross multiply
76,277.80x = 114,416.70 × 68,501.80 - Step 4: Simplify right side
76,277.80x = 7,837,749,900.06 - Step 5: Solve for x
x = 7,837,749,900.06/76,277.80 - Step 6: Final answer
x = 102,752.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.